Stem winding and setting watch.



No. 741.092. y l PATENTED 001*. 13, 1903.

J. M. BAOHNER. STEM WINDING AND SETTING WATCH.

APPLICATION FILED DEC. 8, 1902.

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m5 nrwms vznzRs cc VHOTO-LIYHO v wAsumclYaw a c UNITED STATES Patented October 1?, 130?.

PATENT @EETQE.

STEM WINDING AND SETTENG \NATCt-i.

SPECIFICATION forming part of Letters Patent No. 741,092, dated October 13, 1903.

Application filed December 8,1902. Serial No. 134,808. No model.

To all whom, it may concern:

Be it known that I, JOSEPH M. BAGHNER, a citizen of the United States, residing at Oakpark, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Stem Winding and Setting Mechanisms for Watches, of which the follow ing is a specification.

The object of this invention is the production of an improved stem winding and setting mechanism for watches.

In the accompanying drawings, Figure 1 is a side elevation of a Watch embodying the features of my invention. Fig. 2 is a transverse sectional view taken, on the axial line of the stem-arbor. Fig. 3 is a perspective view showing the lower end of the stem-arbor, the gear-casing, the gear for said casing, and the shifting lever and illustrating the form of the connection between the stem-arbor and said gear. Fig. 4 is a fragmental section on dotted line 4 4 of Fig. 2. Fig. 5 is a side elevation of two flat springs D and G hereinafter described.

In the embodiment herein shown of this invention I provide the usual plates A and A, having the elongated openings A. in each of said plates for the reception of a gear-casing to be hereinafter described. The plates A and A are also provided with the usual openings for the bearings of the-watch-movement, (not shown,) also with bearing-openings for the reception of the pinions of the Winding and setting trains, to be hereinafter described. Two small elongated openings A and A are provided to secure two flat springs, to be hereinafter mentioned, to the plate A, and a stop-pin A in said plate limits the movement of the shifting yoke, as will hereinafter appear.

B is a stem-arbor having the usual milled crown B secured thereto by a screw-thread engagement, the lower end of the stem-arbor having an annular groove 13 and a longitudinallyslotted opening B bifurcating the lower end of said stem-arbor. The stem-arbor projects through the gear-casing l3 and has an engagement with a gear 0 therein by means of the two integral studs 0, which project inwardly into the central opening of said gear and are adapted to lie within the vertical slot B in the end of said stern-arbor,

whereby said stenrarbor is susceptible of a longitudinal movement with relation to said gear 0 sufficient to shift the mechanism from the winding to the setting position of the stem or to permit the stem to be wholly withdrawn from the gear when the movement is to be removed from its case. The gear-casing B is composed of two plates 0 dished or depressed near their middle portions to contain the gear O between them, the outer edges of the plates projecting into the elongated openings A in the two plates A and A to hold them in position and to place the gear 0 in line with the stein-arbor B.

A shifting yoke D is pivotaliy mounted upon the stud D on the forward side of the plate A, and this yoke has three arms, two of which, D and D extend sidewise in opposite directions, and the third arm, D, extends away from the stem-arbor and substantially at a right angle to a line passing through the arms D and D The arm D forms a seat for the outer end of the flat spring D which spring is secured to the plate A by a side projection D formed integral with said spring, entering the opening A in the plate A. ing-train into engagement with the stein-arloor. The movement of the arm D in the opposite direction is limited by the stop-pin A The oppositely-extending arm D is curved downward slightly and is provided in its up per side with a notch D A pinion D is retatably mounted upon the stud D under the yoke D, its teeth engaging with those of the gear O, and the arm D carries a pinion D intermeshing with the pinion D.

A shifting lever E for oscillating the yoke D upon its pivotD is pivotally mounted upon a stud E, entering one of the openings (not shown) in the plate A. One end of this lever is adapted to engage the upper side of the arm D of the yoke D to depress said arm and oscillate said yoke in the direction to throw in the setting-train and hold said yoke at the extremity of its movement by entering the notch D in said arm. The other end of the lever carries a pin E extending transversely therefrom, the end of said pin lying within the annular groove near the lower end of the stem-arbor B, by means of which connection the stem-arbor may be rotated freely;

The spring D tends to throw the wind- I but any longitudinal movement of the stemarbor is communicated to the shifting lever E to oscillate said lever 011 its pivotal stud E.

F and F are gears in the setting-train, and G is a gear in the winding-train, both common in watches of the general character of the watch of my invention. The oscillation of the yoke D, that occurs upon a longitudinal movement of the stein-arbor B, throws the pinion D into engagement with either the gear F or the gear G, an outward movement of the arbor causing the teeth of the pinion D to mesh with those of the gear first mentioned and an inward movement of the stemarbor throwing the teeth of the pinion D into engagement with those of the gear G. A pawl G, pivotally mounted upon the plate A, engages the teeth of the gear G and prevents any backward movement of said gear tending to unwind the watch-spring. (Not shown.) This pawl is held in engagement with the teeth of said gear G by means of the ilat spring G the free end of which bears upon said pawl, its opposite end having an integral side projection G adapted to enter the opening A in the plate A and hold said spring in position. The stem-arbor normally lies in its inmost position, and when thus the pinion D is in engagement with the gear G and the winding-train is in service. An outward movement of the stem-arbor oscillates the lever E upon its pivot E, depresses the arm D of the yoke D, oscillates said yoke upon its pivot D, and moves the pinion D- into engagement with the pinion F ofthe setting-train, withdrawing the teeth of the pinion D from engagement with those of the gear C, thus placing the setting-train in active connection with the stem-arbor.

It is clear that various changes might be made in that embodiment of my invention which is described herein without a departure from the spirit and scope of said invention. I therefore desire to have it understood that I do not limit myself to the precise details herein set forth.

I claim as my invention 1. In a stem-arbor connection for watches, in combination, two watch-plates having coincident openings therein; a stem-arbor having a bifurcated inner end; a gear in mesh with the winding or setting mechanism, said gear having a stud projecting into its central opening; a casing in which said gear is adapted to lie loosely, said casing being formed of two plates having a recess in each of their adjacent faces and being held in position between the two plates of the watch, the edges of the casing lying within the openings in said plates.

2. In a stem winding and setting mechanism, in combination, two watch-plates having coinciding openings; an oscillatory shifting yoke havingalocking-notch therein, also having intermeshing gears adapted to be moved into engagement with either the winding or the setting train; a gear constantly in mesh with the gear of the shifting yoke; a gearcasing, said last-mentioned gear lying loosely in said casing and having a stud projecting into its central opening, said gear-casing being formed of two plates having a recess in each of their adjacent faces, said casing be ing secu red between the two watch-plates, the edges of said casing lying within the coincident openings of said plates; a stenrarbor extending into the central opening in said gear and having a notch for said stud; a shifting lever pivotally mounted on one of said watchplates, and having a pin adapted to lie within said annular groove, the opposite end of said shifting lever lying in contact with the shifting yoke and being adapted to lock said yoke at one extremity of its movement by entering the locking-noteh in said yoke; and a spring for oscillating said yoke in a contrary direction.

JOSEPH M. BAOHNER.

\Vitnesses:

L. L. MILLER, Gno. L. CHINDAIIL. 

